Diagnostic imaging especially brain imaging is nowadays widely developed involving more and more modalities. The size of image dataset then becomes very big. It is a problem not only because of space storage issue but also for reliable data communication as in cloud architecture. Our goal is to develop a novel method called sequential - storage of differences to compress brain image dataset by utilizing redundancy in 4D format (3D+t). We tested our method with real clinical patient data produced by CT Perfusion and measured the ratio of compression as well as power of rate compression to evaluate the performance. With 10 dataset, we have average compression rate of 0.53 and space saving of more than 47%. This method is lossless and compression ratio was acceptable that make it is suitable to be applied in cloud architecture.

To assess the relationship between knowledge and self efficacy associated to HIV/AIDS in women from Chile with social disadvantages.Correlation study that uses the baseline assessment of the Testing an HIV and AIDS intervention in Chilean women study, carried out between 2006 and 2008, with a sample of 496 women between 18 and 49 years old, in 2 neighborhoods of Santiago de Chile. Participants answered a structured survey conducted by trained interviewers. The survey included questions about sociodemographic information, risk behaviors and a self-efficacy knowledge scale among others.The average age was 32.39.1 years, 72.2% live with their partner and 42.7% have completed high school education. The mean score of HIV infection knowledge was 8.92.5, while the mean score for the three scales used to measure self-efficacy were: Peer rules =9.83.6, Risk reduction intentions =12.23.6 and Self Efficacy Form=20.24.7. HIV knowledge had a weak positive correlation with the Risk reduction intentions scale (r=0.19; p<0.0001) and the Self Efficacy Form scale (r=0.34; p<0.0001), however there was no correlation with the Safe sex peer rules (r=0.13;p=0.78).There is a weak positive correlation between the HIV/AIDS related knowledge and self-efficacy among Chilean with social disadvantages.

To describe attitudes, knowledge and perceptions of nurses and nursing students towards the people who live with HIV/AIDS (PLWHA).Bibliographic study in which six electronic databases were searched using the key words: attitude, knowledge, nursing, perceptions, HIV/AIDS. Publications between 1998 and 2007 were considered.560 articles limited by scientific researches or ministerial reports membership were retrieved. Finally a total of 38 publications were selected, the analysis showed that the level of knowledge of nurses and nursing students about PLWHA is good and the attitudes towards HIV/AIDS have improved over time. Nurses and nursing students have been able to identify both positive and negative aspects in the PLWHA care personally and professionally because there is a more favourable perception.There are few studies in Latin America and Chile that study the attitudes and knowledge of the studied population towards PLWHA. According to publications found the knowledge and attitudes have improved because the perception is more favourable.

PubMed | National University of Colombia, Magister University and University of AntioquiaType: | Journal: Revista colombiana de psiquiatria | Year: 2015

To determine the effectiveness of the psychosocial strategies designed to improve the outcomes in adults with schizophrenia in both, acute and stable phase of the disorder. This evidence is used to propose recommendation in the guidelines of integral attention for the diagnosis, treatment and psychosocial rehabilitation of adults with schizophrenia.A guideline for clinical practice was developed using the methodological framework of theMinisterio de la Proteccin Socialto collect evidence and grading recommendations.Asearch, evaluation and synthesis of evidence were carried out. The evidence was presented to the Guideline Developing Group and recommendations, employing the GRADE system, were produced.The psychoeducation and family intervention showed higher efficacy, compared with the usual treatment, to prevent relapses and hospital readmissions, to reduce family burden and to improve adherence to treatment. The social skill training was effective to improve symptoms, social functioning and quality of life. However, the quality of evidence was low. There was not enough evidence about the efficacy of occupational therapy, but considering patients preferences and its wide clinical utilization, the GDG suggested its inclusion.Psychoeducation, family intervention and social skill training are recommended to be offered for the treatment of schizophrenia. Furthermore, occupational therapy is suggested for inpatients and outpatients with the disorder.

Compact fluorescent lamps and high-power lightemitting diodes use an electronic device that injects harmonics into distribution networks, thereby altering power quality levels. This paper shows these lamps' electrical characterisation and the results of a computer simulation of a radial distribution feeder supplying electricity to customers who use this type of harmonic load. The objective was to analyse the effect on distribution systems due to CFLs and LEDs' high penetration.